Country calling code

United Kingdom country code: +44

Q: What is the country code of the United Kingdom?

The country calling code of the United Kingdom is +44. The United Kingdom shares the code +44 with other countries and territories.

To call the United Kingdom from another country, dial your exit code, then 44, then the national number without the leading 0. A United Kingdom mobile number dialled from abroad looks like +44 7400 123456.

Country code: +44
Exit code (IDD): 00
Trunk prefix: 0
Mobile number length: 10 digits
ISO country code: GB
Time zone: UTC+0 (UTC+1 in summer)
Capital: London
Currency: GBP

How to call the United Kingdom

1
Dial the exit code of the country you are in. 011 in the US and Canada, 00 in the UK and most of Europe, 0011 in Australia. On a mobile phone, press and hold 0 to type + instead.
2
Dial 44, the country code of the United Kingdom.
3
Dial the local number without the leading 0. Numbers written for callers inside the United Kingdom start with the trunk prefix 0; it is dropped when you call from abroad.

Calling from	You dial
Inside the United Kingdom	07400 123456
Any mobile phone	+44 7400 123456
United States or Canada	011 44 7400 123456
Australia	0011 44 7400 123456
Japan	010 44 7400 123456

Example with the United Kingdom sample number +447400123456.

Calling abroad from the United Kingdom

Dial the exit code 00, then the country code and the number. To call the US from the United Kingdom: 00 1 + area code + number.

United Kingdom phone number format

Example numbers for each number type, written the way they are dialled inside the United Kingdom and from abroad. The length counts the digits after the country code.

Type	National format	International format	E.164	Digits
Mobile	07400 123456	+44 7400 123456	+447400123456	10
Landline	0121 234 5678	+44 121 234 5678	+441212345678	9, 10
Toll-free	0800 123 4567	+44 800 123 4567	+448001234567	7, 9, 10
Premium rate	0901 234 5678	+44 901 234 5678	+449012345678	7, 10
VoIP	056 1234 5678	+44 56 1234 5678	+445612345678	10
Personal number	070 1234 5678	+44 70 1234 5678	+447012345678	10
Pager	076 4012 3456	+44 76 4012 3456	+447640123456	10
UAN (universal access)	055 1234 5678	+44 55 1234 5678	+445512345678	10

Mobile networks in the United Kingdom

The first digits of a number show which network the number range was assigned to. Numbers can be ported to another network later.

All 632 prefixes →

O2

110 prefixes

07106071070738107382073940739507430074310746107489074990751+98

Three

106 prefixes

0736007361073620736307364073650736607367073780738007383073890+94

Vodafone

97 prefixes

073400734107342073490735007351073520735307370073710737207373+85

EE

66 prefixes

073000730107302073030730407375073760737707396073980739907415+54

Orange

56 prefixes

074090741007416074190742007421074220752707528075290753007531+44

Core Communication

13 prefixes

075204077442077443077444077445077446077447077448077449077552077553077554+1

Country codes of neighbouring countries

🇮🇪 Ireland+353

United Kingdom country code: FAQ

What is the country code of the United Kingdom?

The country calling code of the United Kingdom is +44. The United Kingdom shares the code +44 with other countries and territories.

How do I call the United Kingdom from abroad?

Dial your exit code (011 from the US and Canada, 00 from most of Europe, or simply + on a mobile phone), then 44, then the local number without the leading 0. Example: +44 7400 123456.

What is the exit code for international calls from the United Kingdom?

To call another country from the United Kingdom, dial 00, then the other country's code and number. On mobile phones you can always use + instead.

How many digits does a United Kingdom mobile number have?

Mobile numbers in the United Kingdom have 10 digits after the country code (without the trunk prefix), for example +44 7400 123456.

Which mobile networks operate in the United Kingdom?

Mobile number ranges in the United Kingdom are assigned to O2, Three, Vodafone, EE and others. Because numbers can be ported between networks, the prefix shows the network a number was originally issued to. Use the carrier lookup to check a specific number.

How can I check if a United Kingdom phone number is valid?

Enter the number in the checker on this page. It checks the length and number ranges of the United Kingdom offline. To verify numbers in bulk or from your own software, use the numlookupapi phone validation API.

Phone number API

Validate numbers like this in your app

numlookupapi checks any phone number worldwide in one request and returns validity, line type, carrier, location and every standard format as JSON.

Read the documentation

100 free requests every month. No credit card required.

GET https://api.numlookupapi.com/v1/validate/+447400123456

{
  "valid": true,
  "international_format": "+447400123456",
  "country_prefix": "+44",
  "country_code": "GB",
  "line_type": "mobile",
  "carrier": "…",
  "e164_format": "+447400123456",
  "national_format": "07400 123456"
}